●
If the MBUS (PLC) communication mode is selected, do not connect the
RS485 communications cable. In addition, you need to set MBUS
Communication to Enable on the SUN2000 app.
NO TICE
The MBUS (PLC) communication mode is only applicable to medium-voltage
grid connection scenarios and non-low-voltage public grid connection
scenarios (industrial environment).
●
If the RS485 communication mode is selected, do not connect the MBUS CCO
module to the AC power cable. In addition, you are advised to set MBUS
Communication to Disable on the SUN2000 app.
5.6.2 Installing the RS485 Communications Cable
Selecting an Installation Mode
An RS485 communications cable can be connected in two ways:
●
Terminal block connection
Recommended: Communications cable with a conductor cross-sectional area
of 1 mm
2
and a cable outer diameter of 14–18 mm.
●
RJ45 network port connection
Recommended: CAT 5E outdoor shielded network cable with an outer
diameter less than 9 mm and internal resistance no greater than 1.5 ohms/10
m, with a shielded RJ45 connector.
NO TE
Select only one installation mode in practice. Terminal block connection is
recommended.
NO TICE
When laying out communications cables, separate them from power cables to
avoid strong signal interference sources.
5.6.2.1 Terminal Block Connection
Terminal Block Port Definitions
shows an RS485 terminal block.
SUN2000-(60KTL, 65KTL)-M0
User Manual (Mexico Edition)
5 Electrical Connections
Issue 06 (2020-10-12)
Copyright © Huawei Technologies Co., Ltd.
52